The preventive principle of good neighbourliness and cooperation and the customary obligation of the precautionary approach had been incorporated in a number of international instruments and were a corollary to the objective of sustainable development.
El principio preventivo de la buena vecindad y la cooperación, y la obligación consuetudinaria de adoptar un enfoque precautorio, se han incorporado a varios instrumentos internacionales y constituyen un corolario del objetivo del desarrollo sostenible.